# Keya Authenticator vs Hourline

The clearest difference is update cadence: Hourline at daily against Keya Authenticator's every 3 weeks. Hourline also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Keya Authenticator sells 3 one-off in-app purchases and Hourline sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Keya Authenticator ships an update every 3 weeks, Hourline daily. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Keya Authenticator | Hourline |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 3 MB | 54 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Eldar SHAIDULLIN](https://appshunter.io/developer/1894639063) | [成琦 李](https://appshunter.io/developer/6783141004) |

## What reviewers say

### Keya Authenticator

[App page](https://appshunter.io/ios/app/keya-authenticator/id6764358712)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $2.99 | one-time |
| Pizza | $9.99 | one-time |
| Family Dinner | $29.99 | one-time |


### Hourline

[App page](https://appshunter.io/ios/app/hourline-world-clock/id6816602142)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hourline Pro Monthly | $0.99 | per month |
| Hourline Pro Yearly | $7.99 | per year |
| Hourline Pro Lifetime | $17.99 | one-time |


## Frequently asked questions

### Is Keya Authenticator free?

Keya Authenticator is free to download, with in-app purchases available.

### Is Hourline free?

Hourline is free to download, with in-app purchases available.

### Do Keya Authenticator or Hourline have ads?

Neither Keya Authenticator nor Hourline shows ads.

### Which is updated more often, Keya Authenticator or Hourline?

Keya Authenticator ships an update every 3 weeks, and Hourline daily. Most recently, Keya Authenticator was updated on October 8, 2026 and Hourline on October 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*